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- ifeq ("$(origin O)", "command line")
- dummy := $(if $(shell test -d $(O) || echo $(O)),$(error O=$(O) does not exist),)
- ABSOLUTE_O := $(shell cd $(O) ; pwd)
- OUTPUT := $(ABSOLUTE_O)/
- COMMAND_O := O=$(ABSOLUTE_O)
- endif
- ifneq ($(OUTPUT),)
- # check that the output directory actually exists
- OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd)
- $(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist))
- endif
- #
- # Include saner warnings here, which can catch bugs:
- #
- EXTRA_WARNINGS := -Wbad-function-cast
- EXTRA_WARNINGS += -Wdeclaration-after-statement
- EXTRA_WARNINGS += -Wformat-security
- EXTRA_WARNINGS += -Wformat-y2k
- EXTRA_WARNINGS += -Winit-self
- EXTRA_WARNINGS += -Wmissing-declarations
- EXTRA_WARNINGS += -Wmissing-prototypes
- EXTRA_WARNINGS += -Wnested-externs
- EXTRA_WARNINGS += -Wno-system-headers
- EXTRA_WARNINGS += -Wold-style-definition
- EXTRA_WARNINGS += -Wpacked
- EXTRA_WARNINGS += -Wredundant-decls
- EXTRA_WARNINGS += -Wshadow
- EXTRA_WARNINGS += -Wstrict-aliasing=3
- EXTRA_WARNINGS += -Wstrict-prototypes
- EXTRA_WARNINGS += -Wswitch-default
- EXTRA_WARNINGS += -Wswitch-enum
- EXTRA_WARNINGS += -Wundef
- EXTRA_WARNINGS += -Wwrite-strings
- EXTRA_WARNINGS += -Wformat
- ifneq ($(findstring $(MAKEFLAGS), w),w)
- PRINT_DIR = --no-print-directory
- else
- NO_SUBDIR = :
- endif
- QUIET_SUBDIR0 = +$(MAKE) -C # space to separate -C and subdir
- QUIET_SUBDIR1 =
- ifneq ($(findstring $(MAKEFLAGS),s),s)
- ifndef V
- QUIET_CC = @echo ' ' CC $@;
- QUIET_AR = @echo ' ' AR $@;
- QUIET_LINK = @echo ' ' LINK $@;
- QUIET_MKDIR = @echo ' ' MKDIR $@;
- QUIET_GEN = @echo ' ' GEN $@;
- QUIET_SUBDIR0 = +@subdir=
- QUIET_SUBDIR1 = ;$(NO_SUBDIR) echo ' ' SUBDIR $$subdir; \
- $(MAKE) $(PRINT_DIR) -C $$subdir
- QUIET_FLEX = @echo ' ' FLEX $@;
- QUIET_BISON = @echo ' ' BISON $@;
- endif
- endif
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